Vulnerability Monitor

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CVE-2020-1472

An elevation of privilege vulnerability exists when an attacker establishes a vulnerable Netlogon secure channel connection to a domain controller, using the Netlogon Remote Protocol (MS-NRPC). An attacker who successfully exploited the vulnerability could run a specially crafted application on a device on the network. To exploit the vulnerability, an unauthenticated attacker would be required to use MS-NRPC to connect to a domain controller to obtain domain administrator access. Microsoft is addressing the vulnerability in a phased two-part rollout. These updates address the vulnerability by modifying how Netlogon handles the usage of Netlogon secure channels. For guidelines on how to manage the changes required for this vulnerability and more information on the phased rollout, see How to manage the changes in Netlogon secure channel connections associated with CVE-2020-1472 (updated September 28, 2020). When the second phase of Windows updates become available in Q1 2021, customers will be notified via a revision to this security vulnerability. If you wish to be notified when these updates are released, we recommend that you register for the security notifications mailer to be alerted of content changes to this advisory. See Microsoft Technical Security Notifications.

Published

2020-08-17T19:15:15.117

Last Modified

2025-03-07T15:52:30.803

Status

Analyzed

Source

[email protected]

Severity

CVSSv3.1: 5.5 (MEDIUM)

CVSSv2 Vector

AV:N/AC:M/Au:N/C:C/I:C/A:C

  • Access Vector: NETWORK
  • Access Complexity: MEDIUM
  • Authentication: NONE
  • Confidentiality Impact: COMPLETE
  • Integrity Impact: COMPLETE
  • Availability Impact: COMPLETE
Exploitability Score

8.6

Impact Score

10.0

Weaknesses
  • Type: Primary
    NVD-CWE-noinfo
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Operating System microsoft windows_server_1903 * Yes
Operating System microsoft windows_server_1909 * Yes
Operating System microsoft windows_server_2004 - Yes
Operating System microsoft windows_server_2008 r2 Yes
Operating System microsoft windows_server_2012 - Yes
Operating System microsoft windows_server_2012 r2 Yes
Operating System microsoft windows_server_2016 - Yes
Operating System microsoft windows_server_2019 - Yes
Operating System microsoft windows_server_20h2 - Yes
Operating System fedoraproject fedora 31 Yes
Operating System fedoraproject fedora 32 Yes
Operating System fedoraproject fedora 33 Yes
Operating System opensuse leap 15.1 Yes
Operating System opensuse leap 15.2 Yes
Operating System canonical ubuntu_linux 14.04 Yes
Operating System canonical ubuntu_linux 16.04 Yes
Operating System canonical ubuntu_linux 16.04 Yes
Operating System canonical ubuntu_linux 18.04 Yes
Operating System canonical ubuntu_linux 20.04 Yes
Application synology directory_server < 4.4.5-0101 Yes
Application samba samba < 4.10.18 Yes
Application samba samba < 4.11.13 Yes
Application samba samba < 4.12.7 Yes
Operating System debian debian_linux 9.0 Yes
Application oracle zfs_storage_appliance_kit 8.8 Yes
References